Fastening means.



R. M. DIXON. FASTENING MEANS. APPLIOATION FILED AUG. 29, 1907.

Patented Al lg. 2, 1910.-

' W/f/VESSES: gl 54 103 BY.-

- UNITED STATES PATENT OFFICE.

ROBERT M. DIXON, OF EAST ORANGE, NEW JERSEY, ASSIGNOR TO SAFETY CARHEATING 85 LIGHTING COMPANY,

A CORPORATION OF NEW JERSEY,

FASTENING MEANS.

Patented Aug. 2, 1910.

Application filed August 29, 1907. Serial No. 390,607.

To all whom it mag concern: I

Be it known that I, ROBERT M. DIXON, residing at East Orange, in thecounty of Essex and State of New Jersey, have invented This inventionrelates to certain improve I ments in fastening devices, but inasmuch asmany of its characteristic advantages prominently appear in itsembodiment as a shade holder for illuminating devices, it will beconducive to clearness to disclose this invention in such relation. 1 V

This invention has in viewamong other objects the provision of a shadeholder which, structurally considered, will be of the greatest possiblesimplicity and compactness and be composed of but few parts all of whichmay be manufactured at a minimum of cost. I

This invention also contemplates a shade holder which will in practicalusa e possess great durability and positiveness of action and which maybe operated with the greatest ease for the purpose of renewing shades.

A further object of this invention is to devise a shade holder whichwill be sightly in appearance, bein free from undesirable projectingparts suc as screws or the like, and which will rigidly and firmlyretain the shade, in place without being loosened by vibrations such asthose common to railroad cars when traveling.

Other objects and advantages will be in part obvious from the annexeddrawings, and in part pointed out in the following description.

This invention accordingly consists in the features of construction,combinations ofelements and arrangements of parts which will beexemplified in the construction hereinafter set forth and the scope ofthe application of ,which will be indicated in the following claims.

In order that this invention may be the more fully understood and madecompreherrsible to others skilled in its relating arts, drawingsillustrating one of the several possible utilizations of the same areappended as a part of this disclosure and, Whilo'the characteristicfeaturesand principles of this I invention may be otherwise applied bymodification falling within the intendedsco e of the claims, the hereindisclosed embodiment may be advantageouslyresorted to in practice .andisregarded as representing substantial improvements over many of theseeming equivalents of this invention. In the accompanying drawings,corresponding parts are similarlyireferred to by the figures of which;

latter to be removed.

Continuing now with a more detailed deof this invention, withsuch-occasional reference to the appended drawings as may afford a clearcomprehension of the same, 1 denotes the body portion of a bracketadapted for use in connection with electric lamps. This bracket maycomprise a wall portion which may be mounted the lamp socket 4 willordinarily provide a channel such as that denoted by 6 for enabling theelectric socketin the usual'manner.

The shade supporting member or portion 8 may, of course, constitute anintegral part may dictate. This supporting member-8 is the open coilsecuring ring-9 to'be coiled into like'characters of referencethroughout all script-ion ofthe herein disclosed embodiment 2 whereby itmay be secured to a wall anda lamp socket receiving portion. 3; within--feed wires to be led to the terminals 7 of the so devised as to properlyengage with a securing ring 9 which is here 'shownto be in the form ofan open coil, having" a "single convolution. To this" end the supportingmember 8 may be provided with an inner. groove 10'andan'opening 11 so.as-to'enable Figure 1 is a vertical section partly in eleof engagementwith the shade to enable the adapted to receive the bulb 5. Such bracketof the bracket or it may be detachably carried by the bracket orotherwise as occasion ee P t 9? h ew Qfz 'r e s the:

same through approximately 360 in the directions indicated by the arrowsshown on Figs. 3 and 2 respectively. Preferably the inner end of thecoiled ring is beveled and provided with a grooved seat 12 and thecomplementary edge of the opening in the supporting member may beprovided with an inclined face 13 so as to promote the ready entrance ofthe inner end of the coiled ring into the groove 10. The supportingmember may also be exterior-1y provided with a groove 14 adapted toretain the ring 9 on the supporting member when such ring has beenwithdrawn from the inner groove and also serving to retain such ringinproper alinement with'the inner groove so that it will always be inproper relation therewith to enable it to be immediately forced intotheinner groove without involving anyv adjustmentor other undesirable.

manipulation.

The shade 15 is provided Witha groove 16 around its attaching end whichis complementary to the groove lOof the supporting member so that whenthe ring 9 is in the position indicated by Fig. 2 it will engage andlock together both the shade and the supporting member.

It will thus be perceived that I have succecded in devising a meansadmirably adapted to achieve the several objects and ends of thisinvent-ion. To secure the shade to the bracket, the parts will first bebrought into the relation shown by Fig. 3 whereupon a single revolutionof the ring 9 the direction indicated by the arrow will cause such ringto coil into the inner groove of the supporting member 8; and alsoengage with the complementary groove of the shade as indicated by Fig.2. Inasmuch as the ring 9 will possess acertaindegree of resiliency thefinger grip end 17 will be sprung into contact with the inner end ofsuch ring bringing the parts into the closely interfitting and coin pactrelation shown by Fig. 2. Vith the parts so positioned, it will be foundthat they will not be shaken loose even under excessive vibrations, buton theother hand the shade may be removed With the greatest of facilityby'merely rotating the ring in the direction of the arrow shown on Fig.2 thereby causing the end 17 to ride up the beveled ed e 18 and into theexterior groove 14, thus withdrawing the ring from its ins tel-lockingrelation.

As many changes could be made in the above construction and manyapparently widely different embodiments of this invention could be madewithout departin from the scope thereof, it is intended that a l mat--ter contained inithe above description or shown in the accompanyingdrawings shall be interpreted as illustrative and not in. a limitingsense. i I Having described my invention, what I claim as new and desireto secure by Letters Patent is:

1. A device of the nature disclosed comprising, in combination, asupporting memher having a. ring retaining seat and having an opening incommunication therewith, a shade having a conmlementary seat, and a ringhaving the form of an open coil adapted to be passed endwise throughsaid opening into engagement withsaid seats to secure said shade to saidsupporting member.

2. A device of the nature disclosed including in combination, asupporting member having a ring ret-aining'seat and an opening leadingthereto, a supported member having a complementary seat, and a ringhaving the form of an open coil adapted to bebrought into and out ofengagement with said seats by circumferentially moving a greater portionof said ring through said opening for.

the urpose of interlocking said members togetl'. er.

A device of the nature disclosed includ; ing in, combination, asupporting member having a ring retaining seat and an opening leadingthereto, a shade having a complementary seat, and a ring having the formof an open coil adapted to be brought into ongagemenu with said seats tolock said shade upon said supporting men'iber and adapted to bcwitidrawnthrough said opening and held in imperative engagcn'ient with saidsupportin 5 member. i

4. A d1 vice of'the nature disclosed comprising, i 1 combination, asupporting memberhavin g an interior ring retaining annu lar groov andan opening leading thereto, a support )(l member having an exteriorcomplementaiy annular groove, and a ring hav ing the fc rm of an opencoil adapted to be passed through said opening into engagement with saidgrooves to lock said members together and adapted to be withdrawnthrough said opening and held in inopera" tive engagement exteriorly ofsaid support-- ing member. a

5. A device of the nature disclosedineluding, in combination, asupporting memnal groove being 1 provided to. receive. saidring as thelatter is withdrawn through said opening.

6. A device of the nature disclosed including, in combination, anannular supporting member interiorly provided with an annularring-retaining groove and having an opening from its exterior incommunication therewith,a shade having adjacent one edge a complementaryexterior groove, and a ring having the form of an open coil adapted tobe mounted on the exterior of said member and upon rotation to passendwise through said opening'i'nto mutual engagement with said groovesto interlock said shade with said supporting member.

7. A device of the nature disclosed including, in combination, asupporting member having an internal annular ring-retaining groove andan opening leading from its exterior thereto, a supported member havinga complementary groove. around a portion of its exterior, and aremovable ring having the form of an open coil adapted to be passedthrough said opening into engagement with said complementary grooves tointerlock said members together. I

8. A device of the nature disclosed comprising, in combination, asupporting member having an annular marginal ring retaining groove andan opening leading thereto, a shade having a complementary groove, aring having the form of an open coil consisting approximately of asingle convolution adapted upon rotation in one direction to passthrough said opening into engagement with said grooves to interlock saidshade and said suliiporting member and adapted to be withdrawn throughsaid opening upon rotation in the oppositedirection, and means providedexteriorly of said supporting member adapted to support said ring afterthe said Withdrawal thereof.

9.. A device of the nature disclosed including, in combination, asupporting member having a ring-retaining seat and an opening leading tosaid seat, a supported member, and a ring having the form of an opencoil adapted to be rotated from a position Without said supportingmember through said opening into said seat to interlock said partstogether. a

10. A device of the nature disclosed including, in combination, asupporting member having an opening in the side thereof and a retainingseat, a supported member having a complementary seat, and a ring havingthe form of an open coil adapted to be rotated through said opening froma position without the supportin member into said seats to interlock saimembers together. V

11. A device of the nature disclosed including, in combination, asupporting member, a sup orted member, said members having comp ementaryadjacent ring-retaining means, an opening in one of said members, and alocking ring having a groove formed in one end and' adapted to be passedthrough said opening into said complementary ringretaining means tointerlock said members together, said groove being positioned to receivethe other end of said ring when said parts are in interlocked relationWhereby accidental unlocking is prevented.

12. A device of the nature disclosed in eluding, in combination, asupporting memher, a supported member,'said members ha vingcomplementary annular grooves and one of said members having an exteriorgroove, a removable locking ring adapted by a circumferential movementthereof to be passed from said exterior groove into saidcomplementarygrooves to interlock said members together.

13. A device of the nature disclosed in cluding, in combination, asupporting memher, a supported member, said members having complementaryadjacent grooves, one of said members having an opening therein leadingto one of said grooves, an exterior annular groove on said lastmentioned member, a removable locking means adapted to be moved from aposition in said exterior groove through said opening to saidcomplementary grooves to interlock said members together.

In testimony whereof I afiix my signature, in the presence of twowitnesses.

ROBERT M. DIXON,

